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Type: Posts; User: koolaid747

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  1. Replies
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    I am not an authority on Propane systems, but if...

    I am not an authority on Propane systems, but if I am not mistaken, there should be a regulator at the tank and you run gas lines from that point. I am not sure it permissible, good practice or safe...
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    Makinhole" You said "It is a difficult and...

    Makinhole" You said "It is a difficult and frustrating position to be in" and I can't agree with you more. If someone made the decision to remove the factory safety system controls it will be darn...
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    Did I read that some or all of the components to...

    Did I read that some or all of the components to the scrolling marquee have been removed?
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    "ICanHas" - I didn't understand all of the stuff...

    "ICanHas" - I didn't understand all of the stuff I read on that patent application either. I was told to disregard it because the product is out of production and did not apply. As I mentioned...
  5. "jmac00" Thanks for the post... Made me laugh!

    "jmac00" Thanks for the post... Made me laugh!
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    The product that the patent information speaks of...

    The product that the patent information speaks of is not in production any longer. TDX 20 is a completely different product that does not use R-134a. Just an FYI.
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    "ICanHas" "Way to bump up 1 1/2 year old thread."...

    "ICanHas" "Way to bump up 1 1/2 year old thread." I am not sure what you meant by this. I was really responding to an open and unfinished question posed by "ems4ty" and because it is an open forum,...
  8. What's the question, maybe we can help.

    What's the question, maybe we can help.
  9. As rojacman said... before you get more than you...

    As rojacman said... before you get more than you bargained for, if you have air in your coil it could be a system water level issue and this would be considered a common area maintenance issue. If it...
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    I used to use an item similar to the "Compressor...

    I used to use an item similar to the "Compressor Hoist CH2" (Google it.) when I was doing residential and light commercial. It was still safer to have a helper to steady the ladder and hook up the...
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    “ems4ty” I ran into your thread some time ago and...

    “ems4ty” I ran into your thread some time ago and was fortunate to have some experience with the Bluon r-G8 through some of the development processes that have come over the last couple of years. I...
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    That is cool!

    That is cool!
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    If you remove the blower assembly, can you get a...

    If you remove the blower assembly, can you get a good look at the heat x?
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    Ande, did you check the dampers yet?

    Ande, did you check the dampers yet?
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    Thanks for the trip down memory lane. I am too...

    Thanks for the trip down memory lane. I am too young to have actually worked with SO2, but a lot of this stuff was in old refrigerators like GE Monitor Tops. In Los Angeles we had to ID the...
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    Is it one 3 stage unit or a bunch of units having...

    Is it one 3 stage unit or a bunch of units having a problem? Either way... Check economizer dampers and make sure either the osa dampers or the return air dampers are not both closed at the same time...
  17. John... Just wondering if you put the unit back...

    John... Just wondering if you put the unit back into operation and if you found it needs replacement? I worked for a company for about a week that sent me out with their number one maintenance tech....
  18. Thread: Got shocked

    by koolaid747
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    I am glad you are here to share this with us and...

    I am glad you are here to share this with us and thank you for doing so. I will incorporate this into my safety awareness regime.
  19. Glennac... Thank goodness you are OK. I just...

    Glennac... Thank goodness you are OK. I just watched the video that Smeg mentioned and it is absolutely scary what some of these people are doing to insult all of us that have studied and worked very...
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    Don't forget to replace the stuck relay that...

    Don't forget to replace the stuck relay that single phased it!
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    That was the best unit/compressor that has ever...

    That was the best unit/compressor that has ever been made. If they make that compressor anymore I would replace it. Don't forget to get new rotolocks.
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    As to the resistors installed... I have only seen...

    As to the resistors installed... I have only seen diodes or capacitors placed across contactor coils to stop the voltage spikes that lead to problems in an energy management system. As for the...
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    Must be warming up... Compressor change approved!...

    Must be warming up... Compressor change approved! Finding the compressor out of oil does indicate a reason for the burnout. It is still difficult at this point to determine why the compressor lost...
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    Many more bits of info are needed to get close to...

    Many more bits of info are needed to get close to a guess. Pressures, temperatures. oil level. been operating awhile or new...
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    It is normal for an overload or problem on the...

    It is normal for an overload or problem on the low voltage side to open the smaller windings on the primary side. A correctly sized fuse on the secondary should stop the primary from opening... IMHO.
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    Could you obtain the hot and cold deck set points...

    Could you obtain the hot and cold deck set points and actual temperatures being sent to the OR's too?

    "... but need to maintain exhaust standards for the OR’s of 350 cfm minimum. Right now they...
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    Rich, Would you happen to have static pressure...

    Rich, Would you happen to have static pressure readings on the hot and cold ducts entering the constant volume boxes that supply each operating room? Also, a SP reading after each constant volume...
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    Sorry Timjimbob... I could not find anything on...

    Sorry Timjimbob... I could not find anything on search engine to remind me of what your working on. I can only remember working on one unit that was built to NOT let the motor come out without a...
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    Can you snap a picture of the unit? I may be able...

    Can you snap a picture of the unit? I may be able to remember. A model number may help me as well.
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    Good call timjimbob! This would explain why the...

    Good call timjimbob! This would explain why the safety switch didn't work either.
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    dlove... I found a good article for you to take a...

    dlove... I found a good article for you to take a look at. http://www.achrnews.com/articles/variable-air-volume-systems
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    If it is a typical double duct system the hot and...

    If it is a typical double duct system the hot and cold deck static dampers are located after the hot and cold coils somewhere near the air handler. Each floor has several 'double duct boxes' which...
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    Dlove, He does have a constant volume system but...

    Dlove, He does have a constant volume system but with it being double duct it has different air volumes going through the cold duct and hot duct controlled by static dampers at the air handler. His...
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    Air balance is not the issue at this point. Yes,...

    Air balance is not the issue at this point. Yes, you will need a vfd on the return fan. You don't want to blow or suck windows out. You will need to modify your controls so that the vfds track your...
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    By adding floor dampers you are in effect...

    By adding floor dampers you are in effect changing the constant volume double duct system to a variable air volume system. Anytime you take an engineered system and change any one of the variables it...
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    Yep, it's an old York. Had a key lock on the...

    Yep, it's an old York. Had a key lock on the control panel down at the bottom. Wonder what some engineers have on their mind when they come up with stuff like this?
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    IMHO... The theory is great and your drawing is...

    IMHO... The theory is great and your drawing is very simple but. Changing the double duct system to VAV is not simple. You will need to add a vfd on the return fan, redo the controls, maybe need to...
  38. John, good points... my brain read fan coil and...

    John, good points... my brain read fan coil and not furnace!
  39. Replies
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    dandyme... I like your signature tag line! "It`s...

    dandyme... I like your signature tag line! "It`s better to be silent and thought the fool; than speak and remove all doubt."

    ljanosky... I found that filling out a little bit of information in...
  40. Make sure that your refrigerant charge is good...

    Make sure that your refrigerant charge is good (superheat and subcooling, etc.). If there is a warm spot in the coil the water will not trickle down the fins, it will fall off.
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    It has been my experience that the VA rating of...

    It has been my experience that the VA rating of the transformer doesn't change, it is some other component or factor that changes. Things to consider: Make sure the high voltage tap is correct, IE...
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    Chris... Can you get us a coil TD on each air...

    Chris... Can you get us a coil TD on each air handler with the compressor loaded up? Based upon the fact that you said you have about 58 psig suction before and after the suction filter it look like...
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    Trykon... Barbar's answer is a good one as to why...

    Trykon... Barbar's answer is a good one as to why it could be the compressor. Delta T has also made some good points. You have also made some good points and I can understand your concern(s).
    ...
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    Yes, a 200 + degree discharge temperature could...

    Yes, a 200 + degree discharge temperature could indicate a compressor problem.
  45. Also, when taking the readings, make sure that...

    Also, when taking the readings, make sure that your compressor is fully loaded.
  46. I finally found my piping manual.... So much...

    I finally found my piping manual.... So much stuff! Anyway, the oil return lines are there to allow the coil to drain the oil out of the bottom of the coil because the suction outlet is in the middle...
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    When using the leads in series with the load......

    When using the leads in series with the load... Isn't the leads used to measure DC amps? I have always used an amp clamp or current transformer for a/c voltage. If I wanted more accurate reading I...
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    It would appear that you may have a restriction...

    It would appear that you may have a restriction in the suction line somewhere based up a pressure of 75psig at both evaps and a suction pressure of 58psig at the compressor. As stated earlier a 2 to...
  49. Going off of a poor memory... as I recall the oil...

    Going off of a poor memory... as I recall the oil return lines had a valve on them. They were located on the bottom of the coil where the liquid refrigerant would be and were opened up to clear an...
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    Hey Mr. Fix... Yes, it is tuff sometimes to ask...

    Hey Mr. Fix... Yes, it is tuff sometimes to ask our fellow tradesmen a question isn't it? I admire a tech that wants to learn by asking a question.

    IMHO... Although you have a big 20 ton system...
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